Engineering

Write Unit Tests

Generate thorough unit tests for a function.

Write unit tests for the function below using {{framework}}. Cover the happy path, edge cases, boundary values, and error conditions. Use clear test names that describe the scenario. Note any cases that are hard to test and why.

```
{{code}}
```

Fields like {{ this }} are placeholders — replace them with your own details, or let Aria ask you for them.

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